Hackerrank | 10 Days of Javascript | Day 1-Solution in JS | Arithmetic-Operators-hackerrank-Solution-in-JS

Hackerrank | 10 Days of Javascript | Day 1-Solution in JS | Arithmetic-Operators-hackerrank-Solution-in-JS

Objective

In this challenge, we practice using arithmetic operators. Check out the attached tutorial for resources.

Task

Complete the following functions in the editor below:

1. getArea(length, width): Calculate and return the area of a rectangle having sides  and .
2. getPerimeter(length, width): Calculate and return the perimeter of a rectangle having sides  and .

The values returned by these functions are printed to stdout by locked stub code in the editor.

Input Format

Constraints

•  and  are scaled to at most three decimal places.

Output Format

Sample Input 0

3
4.5

Sample Output 0

13.5
15

Explanation 0

The area of the rectangle is .
The perimeter of the rectangle is .

https://www.hackerrank.com/challenges/js10-arithmetic-operators/problem

Day 1: Arithmetic Operators Solution in JS

'use strict';

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', inputStdin => {
    inputString += inputStdin;
});

process.stdin.on('end', _ => {
    inputString = inputString.trim().split('\n').map(string => {
        return string.trim();
    });
    
    main();    
});

function readLine() {
    return inputString[currentLine++];
}

/**
*   Calculate the area of a rectangle.
*
*   length: The length of the rectangle.
*   width: The width of the rectangle.
*   
*	Return a number denoting the rectangle's area.
**/
function getArea(length, width) {
    let area;
    // Write your code here
    area=length*width;
    return area;
}

/**
*   Calculate the perimeter of a rectangle.
*	
*	length: The length of the rectangle.
*   width: The width of the rectangle.
*   
*	Return a number denoting the perimeter of a rectangle.
**/
function getPerimeter(length, width) {
    let perimeter;
    // Write your code here
    perimeter=2 * (length + width);
    return perimeter;
}


function main() {
    const length = +(readLine());
    const width = +(readLine());
    
    console.log(getArea(length, width));
    console.log(getPerimeter(length, width));
}